"Imagine you’re walking around the British Library. Suddenly, your smartphone beeps at you. A library app is alerting you to the resources around you. You ask the app to search for a specific book. The app tells you where to go to find it. The smartphone goes to sleep. You reach the suggested reading room. The smartphone wakes up. The app tells you which shelf the book is on, posts up its publication details and reviews, and informs you about related events happening in the library."